"Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
> A few days ago Paolo Gibellini asked me to doodle some more.
>
> Here are the results of some experiments I have done since I started
> looking at Droj's problem in the "2D function to 3D tube" thread.

It seems that the attached image was to big for the Image Digest preview.

Here is a smaller version that I hope will show up.

--
Tor Olav
http://subcube.com
https://github.com/t-o-k

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Preview of image 'some trefoil tubes 1200x900.jpg'